Theories of Journalism in a Digital Age: An exploration and introduction 1. Actors, Actants, Audiences, and Activities in Cross-Media News Work: A matrix and a research agenda 2. Who and What do Journalism? An actor-network perspective 3. Tracing Digital News Networks: Towards an integrated framework of the dynamics of news production, circulation and use 4. The Notion of the "Blurring Boundaries": Journalism as a (de-)differentiated phenomenon 5. The Material Traces of Journalism: A socio-historical approach to online journalism 6. Journalism as Cultures of Circulation 7. Place-based Knowledge in the Twenty-first Century: The creation of spatial journalism 8. From Grand Narratives of Democracy to Small Expectations of Participation: Audiences, citizenship, and interactive tools in digital journalism 9. When News is Everywhere: Understanding participation, cross-mediality and mobility in journalism from a radical user perspective 10. The Relevance of Journalism: Studying news audiences in a digital era 11. Innovation through Practice: Journalism as a structure of public communication 12. Politicians as Media Producers: Current trajectories in the relation between journalists and politicians in the age of social media 13. Gatekeeping in a Digial Era: Principles, practices and technological platforms 14. Charting Theoretical Directions for Examining African Journalism in the "Digital Era"